angular.js : select默认选项怎么设置？

问题描述

<!DOCTYPE html><html ng-app='myApp'> <head><meta charset='utf-8'><title></title><script src='https://www.haobala.com/wenda/js/angular.min.js'></script> </head> <body ng-controller='c'><select ng-model='a' ng-change='fn()'> <option value='111'>111</option> <option value='222'>222</option> <option value='333'>333</option></select><ul> <li ng-repeat='v in value'>{{v}}</li></ul> </body> <script>var m1 = angular.module(’myApp’,[]);m1.controller(’c’,[’$scope’, ’$http’,function($scope, $http){ $scope.value = []; $scope.fn = function() {console.log($scope.a);$http.get(’get’+ $scope.a +’.txt’).success(function(data) { console.log(data); $scope.value = data;}) }}]) </script></html>

问题解答

你需要先

<select ng-model='xxx'></select>

这个时候，默认值就是 xxx 的值回答2：

试试给select的value赋值

ng-init呢 或许可以试下

如果下拉列表是在ng-controller里，要设置默认值，需要在controller函数中添加：$scope.a = 111;